Twin Towers' Dust Clouds

Photographic Evidence of Dust Clouds From the Twin Towers' Destruction

The dust clouds that issued from the Towers' explosive collapses
were unlike anything seen in the history of man-made structures.
Even conventional explosive demolitions of large buildings
produced far less dust.
Their appearance and rate of travel resembled
the pyroclastic flows of volcanoes.

This page lists photographs which show the dust clouds
that continued to expand after the waves of
destruction that demolished the towers reached the ground.
Photographs listed on the
collapses page
also show a great deal of dust,
whose production started within the first second of each collapse.